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Home Return to list Small Craft Advisory 0086 Issued by the Boston Forecast Office
Action: New Issued At: 2026-09-18 10:32:46 930 WHUS71 KBOX 181532 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 1132 AM EDT Fri Sep 18 2026 ANZ250-251-254>256-190445- /O.NEW.KBOX.SC.Y.0086.260919T0000Z-260919T1600Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 1132 AM EDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO NOON EDT SATURDAY... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 3 to 5 feet expected. * WHERE...In Massachusetts coastal waters, Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary, Massachusetts Bay and Ipswich Bay, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM and Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island. * WHEN...From 8 PM this evening to noon EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-232-190445- /O.NEW.KBOX.SC.Y.0086.260919T0300Z-260919T1600Z/ Cape Cod Bay-Nantucket Sound- 1132 AM EDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO NOON EDT SATURDAY... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas around 3 feet expected. * WHERE...Cape Cod Bay and Nantucket Sound. * WHEN...From 11 PM this evening to noon EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Frank Action: New Issued At: 2026-09-18 10:32:46 930 WHUS71 KBOX 181532 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 1132 AM EDT Fri Sep 18 2026 ANZ250-251-254>256-190445- /O.NEW.KBOX.SC.Y.0086.260919T0000Z-260919T1600Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 1132 AM EDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO NOON EDT SATURDAY... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 3 to 5 feet expected. * WHERE...In Massachusetts coastal waters, Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary, Massachusetts Bay and Ipswich Bay, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM and Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island. * WHEN...From 8 PM this evening to noon EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-232-190445- /O.NEW.KBOX.SC.Y.0086.260919T0300Z-260919T1600Z/ Cape Cod Bay-Nantucket Sound- 1132 AM EDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO NOON EDT SATURDAY... * WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas around 3 feet expected. * WHERE...Cape Cod Bay and Nantucket Sound. * WHEN...From 11 PM this evening to noon EDT Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Frank Action: Continued Issued At: 2026-09-19 01:31:41 342 WHUS71 KBOX 190631 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 231 AM EDT Sat Sep 19 2026 ANZ250-251-254>256-191515- /O.CON.KBOX.SC.Y.0086.000000T0000Z-260919T1600Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 231 AM EDT Sat Sep 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY... * WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and seas 3 to 5 feet. * WHERE...In Massachusetts coastal waters, Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary, Massachusetts Bay and Ipswich Bay, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM and Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island. * WHEN...Until noon EDT today. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-232-191515- /O.CON.KBOX.SC.Y.0086.000000T0000Z-260919T1600Z/ Cape Cod Bay-Nantucket Sound- 231 AM EDT Sat Sep 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY... * WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and seas around 3 feet. * WHERE...Cape Cod Bay and Nantucket Sound. * WHEN...Until noon EDT today. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Continued Issued At: 2026-09-19 01:31:41 342 WHUS71 KBOX 190631 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 231 AM EDT Sat Sep 19 2026 ANZ250-251-254>256-191515- /O.CON.KBOX.SC.Y.0086.000000T0000Z-260919T1600Z/ Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 231 AM EDT Sat Sep 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY... * WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and seas 3 to 5 feet. * WHERE...In Massachusetts coastal waters, Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary, Massachusetts Bay and Ipswich Bay, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM and Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island. * WHEN...Until noon EDT today. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ ANZ231-232-191515- /O.CON.KBOX.SC.Y.0086.000000T0000Z-260919T1600Z/ Cape Cod Bay-Nantucket Sound- 231 AM EDT Sat Sep 19 2026 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY... * WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and seas around 3 feet. * WHERE...Cape Cod Bay and Nantucket Sound. * WHEN...Until noon EDT today. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ Action: Cancelled Issued At: 2026-09-19 07:15:39 867 WHUS71 KBOX 191215 MWWBOX URGENT - MARINE WEATHER MESSAGE National Weather Service Boston/Norton MA 815 AM EDT Sat Sep 19 2026 ANZ231-232-250-251-254>256-191315- /O.CAN.KBOX.SC.Y.0086.000000T0000Z-260919T1600Z/ Cape Cod Bay-Nantucket Sound- Coastal waters east of Ipswich Bay and the Stellwagen Bank National Marine Sanctuary-Massachusetts Bay and Ipswich Bay- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- Coastal Waters extending out to 25 NM South of Marthas Vineyard and Nantucket- Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 NM South of Block Island- 815 AM EDT Sat Sep 19 2026 ...SMALL CRAFT ADVISORY IS CANCELLED... Winds will continue to drop off this morning. $$ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||